Overview
- The CDC posted the Level 2 advisory on Feb. 5 after confirming an outbreak of the mosquito‑borne chikungunya virus in Seychelles.
- A Level 2 notice means travelers should practice enhanced precautions and it does not restrict or ban travel.
- Officials advise using EPA‑registered insect repellent, wearing long sleeves and pants, and choosing screened or air‑conditioned lodging to avoid day‑biting Aedes mosquitoes.
- The CDC recommends a single‑dose chikungunya vaccine for adults 18 and older at increased exposure risk, with pregnant travelers urged to discuss timing and vaccination with their clinicians.
- Chikungunya typically causes fever and abrupt joint pain 3–7 days after a bite, most people recover within a week though some have prolonged joint pain, and the CDC is also tracking outbreaks in Cuba, Sri Lanka and Suriname.